Originally Posted by rafal_iB_PL
Single card, I highly doubt much attention is paid to making 2x550Ti's scale properly,
This. The cost to buy a second 550Ti for SLi would only be a small amount less than buying a single card with better performance in most games. You could always keep the 550ti to run secondary displays.
SLi scaling depends on the game in question, and very many games just don't handle it well at all. It also confuses auto-config software, which tends to just set things up based on single card performance anyway.
I wish I had gone for a single really good card over a pair of more modest ones.
Intel i7-2600k with an XSPC Raystorm water block, 4x4GB Corsair Dominator, SLi Evga-GTX560Ti-448 FTWs, Asrock Extreme4 Gen3, Crucial M4 256GB SSD, Samsung Spinpoint F3 1TB HDD, powered by a Silverstone Strider+ 850 PSU in a Silverstone TJ-07BW case.
I'm not buying EK GPU blocks ever again. (One GPU killed)